| 摘要 |
PURPOSE:To detect a welding position with high precision by preventing the detection error of the welding position caused by the mixing of image noise due to secondary reflection or spattering light at the time of welding via a laser beam. CONSTITUTION:The fan-shaped light is cast on the welding section of a work, the reflected light is received by an imaging camera, a feature point is extracted to detect a weld position, the average value and the difference of the image intensity for each scanning data are calculated, and the weld position is detected from the maximum value. |
